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Questions and Answers
Which gas is the most plentiful in the Earth's atmosphere?
Which gas is the most plentiful in the Earth's atmosphere?
- Oxygen
- Nitrogen (correct)
- Helium
- Carbon dioxide
What gas is considered a greenhouse gas due to its role in trapping heat radiated from the Earth?
What gas is considered a greenhouse gas due to its role in trapping heat radiated from the Earth?
- Argon
- Helium
- Carbon dioxide (correct)
- Oxygen
Which gas is essential for plants but is exhaled by humans during respiration?
Which gas is essential for plants but is exhaled by humans during respiration?
- Nitrogen (correct)
- Argon
- Carbon dioxide
- Oxygen
What effect does an increase in carbon dioxide levels in the atmosphere have on the Earth's temperature?
What effect does an increase in carbon dioxide levels in the atmosphere have on the Earth's temperature?
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Study Notes
Earth's Atmosphere Composition
- Nitrogen is the most plentiful gas in the Earth's atmosphere.
Greenhouse Gases
- Carbon dioxide is considered a greenhouse gas due to its role in trapping heat radiated from the Earth.
Respiration and Photosynthesis
- Carbon dioxide is essential for plants, but it is exhaled by humans during respiration.
Climate Change
- An increase in carbon dioxide levels in the atmosphere leads to an increase in the Earth's temperature.
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